Buggy code:
public class DbClassShoppingCart implements DbClassShoppingCartForTest , DbClass { private static final Logger LOG = Logger . getLogger ( DbClassShoppingCart . class . getPackage ( ) . getName ( ) ) ; private DataAccessSubsystem dataAccessSS = new DataAccessSubsystemFacade ( ) ; DataAccessSubsystem dataAccess ; ShoppingCartImpl cartImpl ; ShoppingCart cart ; CartItem cartItem ; List < CartItem > cartItemsList ; CustomerProfile custProfile ; Integer cartId ; String query ; final String GET_ID = "GetId" ; final String GET_SAVED_ITEMS = "GetSavedItems" ; final String GET_TOP_LEVEL_SAVED_CART = "GetTopLevelSavedCart" ; final String SAVE_CART = "SaveCart" ; final String SAVE_CART_ITEM = "SaveCartItem" ; final String DELETE_CART = "DeleteCart" ; final String DELETE_ALL_CART_ITEMS = "DeleteAllCartItems" ; String queryType ; public void buildQuery ( ) { } private void buildGetIdQuery ( ) { } private void buildDeleteCartQuery ( ) { } private void buildDeleteAllCartItemsQuery ( ) { } private void buildSaveCartQuery ( ) { <START_BUG> query = ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( "INSERT<seq2seq4repair_space>INTO<seq2seq4repair_space>shopcarttbl<seq2seq4repair_space>(custid,shipaddress1,<seq2seq4repair_space>" + ( ( ( ( "shipaddress2,<seq2seq4repair_space>shipcity,<seq2seq4repair_space>shipstate,<seq2seq4repair_space>shipzipcode,<seq2seq4repair_space>billaddress1,<seq2seq4repair_space>" + "billaddress2,<seq2seq4repair_space>billcity,<seq2seq4repair_space>billstate,<seq2seq4repair_space>billzipcode,<seq2seq4repair_space>nameoncard,<seq2seq4repair_space>" ) + "expdate,cardtype,<seq2seq4repair_space>cardnum,<seq2seq4repair_space>totalpriceamount,<seq2seq4repair_space>totalshipmentcost,<seq2seq4repair_space>" ) + "totaltaxamount,<seq2seq4repair_space>totalamountcharged)<seq2seq4repair_space>" ) + "VALUES<seq2seq4repair_space>(" ) ) + ( custProfile . getCustId ( ) ) ) + ",<seq2seq4repair_space>'" ) + ( cart . getShippingAddress ( ) . getStreet ( ) ) ) + "',<seq2seq4repair_space>'" ) + "" ) + ( cart . getShippingAddress ( ) . getCity ( ) ) ) + "',<seq2seq4repair_space>'" ) + ( cart . getShippingAddress ( ) . getState ( ) ) ) + "',<seq2seq4repair_space>'" ) + ( cart . getShippingAddress ( ) . getZip ( ) ) ) + "',<seq2seq4repair_space>'" ) + ( cart . getBillingAddress ( ) . getStreet ( ) ) ) + "',<seq2seq4repair_space>'" ) + "" ) + "',<seq2seq4repair_space>'" ) + ( cart . getBillingAddress ( ) . getCity ( ) ) ) + "',<seq2seq4repair_space>'" ) + ( cart . getBillingAddress ( ) . getState ( ) ) ) + "',<seq2seq4repair_space>'" ) + ( cart . getBillingAddress ( ) . getZip ( ) ) ) + "',<seq2seq4repair_space>'" ) + ( cart . getPaymentInfo ( ) . getNameOnCard ( ) ) ) + "',<seq2seq4repair_space>'" ) + ( cart . getPaymentInfo ( ) . getExpirationDate ( ) ) ) + "',<seq2seq4repair_space>'" ) + ( cart . getPaymentInfo ( ) . getCardType ( ) ) ) + "',<seq2seq4repair_space>'" ) + ( cart . getPaymentInfo ( ) . getCardNum ( ) ) ) + "',<seq2seq4repair_space>'" ) + ( new Double ( cart . getTotalPrice ( ) ) . toString ( ) ) ) + "'," ) + "'0.00',<seq2seq4repair_space>'0.00',<seq2seq4repair_space>'" ) + ( new Double ( cart . getTotalPrice ( ) ) . toString ( ) ) ) + "')" ; <END_BUG> } private void buildSaveCartItemQuery ( ) { } private void buildGetSavedItemsQuery ( ) { } private void buildGetTopLevelCartQuery ( ) { } private void deleteCart ( Integer cartId ) throws DatabaseException { } private void deleteAllCartItems ( Integer cartId ) throws DatabaseException { } public ShoppingCart retrieveSavedCart ( CustomerProfile custProfile ) throws DatabaseException { } private Integer getShoppingCartId ( CustomerProfile custProfile ) throws DatabaseException { } private List < CartItem > getSavedCartItems ( Integer cartId ) throws DatabaseException { } private ShoppingCartImpl getTopLevelSavedCart ( Integer cartId ) throws DatabaseException { } public void saveCart ( CustomerProfile custProfile , ShoppingCart cart ) throws DatabaseException { } private int saveCartTopLevel ( ) throws DatabaseException { } private void saveCartItem ( CartItem item ) throws DatabaseException { } public void populateEntity ( ResultSet resultSet ) throws DatabaseException { } private void populateShopCartId ( ResultSet rs ) { } private void populateTopLevelCart ( ResultSet rs ) throws DatabaseException { } private void populateCartItemsList ( ResultSet rs ) throws BackendException { } public String getDbUrl ( ) { } public String getQuery ( ) { } }

Fix:
query = ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( "INSERT<seq2seq4repair_space>INTO<seq2seq4repair_space>shopcarttbl<seq2seq4repair_space>(custid,shipaddress1,<seq2seq4repair_space>" + ( ( ( ( "shipaddress2,<seq2seq4repair_space>shipcity,<seq2seq4repair_space>shipstate,<seq2seq4repair_space>shipzipcode,<seq2seq4repair_space>billaddress1,<seq2seq4repair_space>" + "billaddress2,<seq2seq4repair_space>billcity,<seq2seq4repair_space>billstate,<seq2seq4repair_space>billzipcode,<seq2seq4repair_space>nameoncard,<seq2seq4repair_space>" ) + "expdate,cardtype,<seq2seq4repair_space>cardnum,<seq2seq4repair_space>totalpriceamount,<seq2seq4repair_space>totalshipmentcost,<seq2seq4repair_space>" ) + "totaltaxamount,<seq2seq4repair_space>totalamountcharged)<seq2seq4repair_space>" ) + "VALUES<seq2seq4repair_space>(" ) ) + ( custProfile . getCustId ( ) ) ) + ",<seq2seq4repair_space>'" ) + ( cart . getShippingAddress ( ) . getStreet ( ) ) ) + "',<seq2seq4repair_space>'','" ) + "" ) + ( cart . getShippingAddress ( ) . getCity ( ) ) ) + "',<seq2seq4repair_space>'" ) + ( cart . getShippingAddress ( ) . getState ( ) ) ) + "',<seq2seq4repair_space>'" ) + ( cart . getShippingAddress ( ) . getZip ( ) ) ) + "',<seq2seq4repair_space>'" ) + ( cart . getBillingAddress ( ) . getStreet ( ) ) ) + "',<seq2seq4repair_space>'" ) + "" ) + "',<seq2seq4repair_space>'" ) + ( cart . getBillingAddress ( ) . getCity ( ) ) ) + "',<seq2seq4repair_space>'" ) + ( cart . getBillingAddress ( ) . getState ( ) ) ) + "',<seq2seq4repair_space>'" ) + ( cart . getBillingAddress ( ) . getZip ( ) ) ) + "',<seq2seq4repair_space>'" ) + ( cart . getPaymentInfo ( ) . getNameOnCard ( ) ) ) + "',<seq2seq4repair_space>'" ) + ( cart . getPaymentInfo ( ) . getExpirationDate ( ) ) ) + "',<seq2seq4repair_space>'" ) + ( cart . getPaymentInfo ( ) . getCardType ( ) ) ) + "',<seq2seq4repair_space>'" ) + ( cart . getPaymentInfo ( ) . getCardNum ( ) ) ) + "',<seq2seq4repair_space>'" ) + ( new Double ( cart . getTotalPrice ( ) ) . toString ( ) ) ) + "'," ) + "'0.00',<seq2seq4repair_space>'0.00',<seq2seq4repair_space>'" ) + ( new Double ( cart . getTotalPrice ( ) ) . toString ( ) ) ) + "')" ;